Details
| Original language | English |
|---|---|
| Pages (from-to) | 71-82 |
| Number of pages | 12 |
| Journal | CIRP Journal of Manufacturing Science and Technology |
| Volume | 7 |
| Issue number | 2 |
| Publication status | Published - 5 Mar 2014 |
Abstract
Iron-aluminum has an excellent corrosion resistance, low density and high specific strength compared to conventional steel. In addition, the raw materials and manufacturing costs of iron-aluminum alloys are relatively low. However, the machinability is challenging. Economical machining of iron-aluminum is currently not possible due to high tool wear. Furthermore the cutting and chip formation mechanisms in machining of iron-aluminum alloys are not fully understood.To understand the thermomechanical mechanisms in the material separation process the influences of the crystal lattice orientation on the chip formation is analyzed in relation to the cutting direction. Therefore, monocrystalline FeAl specimens are machined, using a simultaneous measuring device existing of a two-color ratio pyrometer, piezoelectric force measurement as well as microcinematographic images. The observed trend is that the segmentation as well as the chip thickness are significantly influenced by the lattice planes engaged in the cut. The causes for the different chip formation mechanisms are ascribed to a change of the slip planes and slip vectors activated in relation to the load on the crystal lattice as well as the orientation of the crystal lattice to the load.
Keywords
- Chip formation, Intermetallic, Iron-aluminum, Linear planing, Monocrystal, Orthogonal turning
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: CIRP Journal of Manufacturing Science and Technology, Vol. 7, No. 2, 05.03.2014, p. 71-82.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Chip formation in monocrystalline iron-aluminum
AU - Denkena, Berend
AU - Stiffel, Jan Hendrik
AU - Hasselberg, Eike
AU - Breidenstein, Bernd
N1 - Funding information: We thank the German Research Foundation (DFG) for their financial support within the project “Wirkmechanismen bei der Spanbildung der intermetallischen Legierung Fe 3 Al-Cr” (DE 447/79-1).
PY - 2014/3/5
Y1 - 2014/3/5
N2 - Iron-aluminum has an excellent corrosion resistance, low density and high specific strength compared to conventional steel. In addition, the raw materials and manufacturing costs of iron-aluminum alloys are relatively low. However, the machinability is challenging. Economical machining of iron-aluminum is currently not possible due to high tool wear. Furthermore the cutting and chip formation mechanisms in machining of iron-aluminum alloys are not fully understood.To understand the thermomechanical mechanisms in the material separation process the influences of the crystal lattice orientation on the chip formation is analyzed in relation to the cutting direction. Therefore, monocrystalline FeAl specimens are machined, using a simultaneous measuring device existing of a two-color ratio pyrometer, piezoelectric force measurement as well as microcinematographic images. The observed trend is that the segmentation as well as the chip thickness are significantly influenced by the lattice planes engaged in the cut. The causes for the different chip formation mechanisms are ascribed to a change of the slip planes and slip vectors activated in relation to the load on the crystal lattice as well as the orientation of the crystal lattice to the load.
AB - Iron-aluminum has an excellent corrosion resistance, low density and high specific strength compared to conventional steel. In addition, the raw materials and manufacturing costs of iron-aluminum alloys are relatively low. However, the machinability is challenging. Economical machining of iron-aluminum is currently not possible due to high tool wear. Furthermore the cutting and chip formation mechanisms in machining of iron-aluminum alloys are not fully understood.To understand the thermomechanical mechanisms in the material separation process the influences of the crystal lattice orientation on the chip formation is analyzed in relation to the cutting direction. Therefore, monocrystalline FeAl specimens are machined, using a simultaneous measuring device existing of a two-color ratio pyrometer, piezoelectric force measurement as well as microcinematographic images. The observed trend is that the segmentation as well as the chip thickness are significantly influenced by the lattice planes engaged in the cut. The causes for the different chip formation mechanisms are ascribed to a change of the slip planes and slip vectors activated in relation to the load on the crystal lattice as well as the orientation of the crystal lattice to the load.
KW - Chip formation
KW - Intermetallic
KW - Iron-aluminum
KW - Linear planing
KW - Monocrystal
KW - Orthogonal turning
UR - http://www.scopus.com/inward/record.url?scp=84896799073&partnerID=8YFLogxK
U2 - 10.1016/j.cirpj.2014.01.004
DO - 10.1016/j.cirpj.2014.01.004
M3 - Article
AN - SCOPUS:84896799073
VL - 7
SP - 71
EP - 82
JO - CIRP Journal of Manufacturing Science and Technology
JF - CIRP Journal of Manufacturing Science and Technology
SN - 1755-5817
IS - 2
ER -